Doom: Legions of Hell

DOOM: Legions of Hell is mod similar to WolfenDOOM by AReyeP, only trying to more closely replicate Doom. First released as a vanilla mod, it was later ported to the Wolf4SDL engine for better performance and compatibility; particularly in terms of rendering the game's floors, ceilings and backdrops. It was created by insurrectionman and first released on June 26, 2007, with the SDL version out on December 25, 2012. It was followed up by DOOM: Legions Revisited.